OIL PUMP NOT REQUIRING CHANGING POSITIONS OF SUCTION PORT AND DISCHARGE PORT ACCORDING TO FORWARD ROTATION AND REVERSE ROTATION

WIPO Patent Application WO/2023/018124

A1

The present invention relates to an oil pump comprising: a pump module comprising a rotary shaft, an inner rotor coupled to the rotary shaft, an outer rotor rotating while being engaged with the inner rotor, a suction port for sucking a fluid, and a discharge port through which the sucked fluid is pressed and discharged; a housing which supports the pump module; and a direction switching portion which is coupled between the housing and the outer rotor so as to maintain an eccentric distance so that the central axis line of the rotary shaft or the inner rotor and the central axis line of the outer rotor are eccentric. According to the present invention, an oil pump that is commonly used in forward and reverse rotations can be provided because there is no need to change the suction port and the discharge port during the forward rotation and reverse rotation of the driving power source and direction switching can be carried out stably.

JPS60159375	HYDRAULIC ROTARY PISTON MACHINE
JP2002130149	OIL PUMP
JP2016023634	OIL PUMP AND HYDRAULIC CIRCUIT FOR VEHICLE

JOO DO JAE (KR)
CHA SEONG WOOK (KR)
YI GAHYEON (KR)
RYU HUI DO (KR)

PCT/KR2022/011704

February 16, 2023

August 05, 2022

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YOUNGSHIN PREC CO LTD (KR)

F04C2/10; F04C15/06; F16H57/04

KR101587840B1	2016-01-22
KR102177683B1	2020-11-16
KR100199501B1	1999-06-15
JP2015121210A	2015-07-02
JP2008291825A	2008-12-04

JUNG, Mu Seok (KR)

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